ATT today launched the ATT Locker, a free and secure cloud-based file sharing service in the iTunes App Store. The cloud service was already available on Android via Google Play from the company. You get 5GB of storage for free. Here's more info on this new service for iOS from ATT:

ATT Locker users get 5 GB of storage for free. The service provides users the ability to upload images and video to secure online storage and quickly share on Facebook, MySpace, Twitter or e-mail. Users can create and customize albums for photos and video on the device or online from a laptop or home computer. Customers can also store music and other files in their ATT Locker storage. The app is compatible back to iPhone 3GS.

Users can make sure they never lose a photo again with Easy Upload feature, which allows you to automatically upload the photos on your device to the AT&T Cloud. With AT&T Locker, users can choose to upload new photos and video via Wi-Fi, wireless or both. Customers can manage those photos and share them through the app on the smartphone or on the AT&T Locker web page. AT&T plans to incorporate additional features in future versions of AT&T Locker.

AT&T LockerRequires compatible iPhone 3GS or higher or Android 2.1 or higher smartphone, or internet access from computer. You must enable the Easy Upload feature in order for your content to be automatically uploaded to the AT&T cloud. For more info visit www.att.com/locker